Properties of the Number 19266

Nineteen Thousand Two Hundred Sixty-Six

Basics

Value: 19265 → 19266 → 19267

Parity: even

Prime: No

Previous Prime: 19259

Next Prime: 19267

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 13 ² × 19

Divisors: 1, 2, 3, 6, 13, 19, 26, 38, 39, 57

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101101000010

Octal: 45502

Duodecimal: B196

Hexadecimal: 4b42

Square: 371178756

Square Root: 138.80201727640704

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Coordination sequence for (3,3,4) tiling of hyperbolic plane. A265071

Number of vertices formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius. A371254

Number of points of L1 norm 4 in cubic lattice Zⁿ. A35598

Irregular triangle read by rows: T(n,k) = number of k-sided polygons formed when connecting infinite lines between all vertices and all points that divide the sides of an equilateral triangle into n equal parts, for k = 3, 4, ..., max_k. A346446

Coordination sequence for C₁₃ lattice. A35750

Triangle T, read by rows, that satisfies matrix equation: T - (T-I)² = C, where C is Pascal's triangle. A117269

Triangle T(n,k) with the coefficient [x^k] of the series (1-x)ⁿ⁺¹* ∑_{m=0..infinity} [(3·m+1)ⁿ + (3·m+2)ⁿ]*x^m in row n, column k. A154646

a(n) = (1/(2·n+1)) * ∑_k=0..n k³ * (2·k+1) * binomial(3·n-k,n-k). A390972

a(n) = 13·n*(n+1). A173307

Coordination sequence for 13-dimensional cubic lattice. A35708